procreate绘画-sketchbook画画 is a mobile-first digital art application targeting children, casual doodlers, and beginners. It leverages a freemium model to provide a distraction-free, accessible creative environment with integrated social sharing. Despite a large user base on Android, the app faces significant challenges. Technical instability, particularly regarding layer interactions and file management, has led to a decline in user sentiment. The removal of account-based storage has further alienated users, creating a critical need for infrastructure improvements to retain its competitive standing.